Med kit replacement in The Zombifier

Mea Culpa, only recently have I learned that the red cross on white background popularily used in games as med kit symbol is a protected sign.
Seeing it so oftenly misused I really didn’t realize it mustn’t be used for this purpose in games.
As soon as I have learned this fact, I have therefore modified the symbol used for med kits in the game The Zombifier which I made for Ludum Dare 33 game jam in August 2015 with a generally approuved one.